132 citations · 1.3k across the 52 of their papers we have counts for
4 papers · 1 filter
Frame Coherence and Sparse Signal Processing
Dustin G. Mixon, Waheed U. Bajwa, Robert Calderbank
The sparse signal processing literature often uses random sensing matrices to obtain performance guarantees. Unfortunately, in the real world, sensing matrices do not always come f…
Posterior consistency in linear models under shrinkage priors
Artin Armagan, David B. Dunson, Jaeyong Lee +2
We investigate the asymptotic behavior of posterior distributions of regression coefficients in high-dimensional linear models as the number of dimensions grows with the number of…
Two are better than one: Fundamental parameters of frame coherence
Waheed U. Bajwa, Robert Calderbank, Dustin G. Mixon
This paper investigates two parameters that measure the coherence of a frame: worst-case and average coherence. We first use worst-case and average coherence to derive near-optimal…
Asynchronous Code-Division Random Access Using Convex Optimization
Lorne Applebaum, Waheed U. Bajwa, Marco F. Duarte +1
Many applications in cellular systems and sensor networks involve a random subset of a large number of users asynchronously reporting activity to a base station. This paper examine…